Transferring Library to New Mac not reading Analysis Data

Hi there, really hoping someone can help me out. Got a MacMini (Ventura) with RekordBox 7.0.3. The MacMini has my Music (old iTunes) library on it. I want to use that Music library with Rekordbox on my MacBookPro (also Ventura and 7.0.3.) but keep all the audio files off the MacBook Pro internal drive and on an external drive.

I have copied my collection on to an external hardrive and I am finding when I connect the external drive and launch RekordBox on my MacBook Pro my collection is there but is missing all of the track analysis and tags. 

On the MacMini I have set the master database to be on the external drive, then obvs on the MacBook selected that. I have also backed up the library on the MacMini (Not Music files) to the external hardrive and restored that library on the MacBook. But still know track tags / analysis.

I have also exported the Music Library on the MacMini as an XML and saved that on the external. Then weirdly if I go into RekordBox preferences on the MacBook and select the saved Music Library XML in the Load Method section all the files are then tagged and analysed but if I load a track onto a deck it says the file is missing.

Any help would be greatly appreciated!

Many Thanks!